Question

what is atom?

answer in 50- 100 words ​

Answer 1

Answer:

An atom is the smallest unit of matter that forms a chemical element.the matters like solid,liquids and gases are composed of these neutralised or ionised atoms

Answer 2

Answer:

An atom is the smallest unit of ordinary matter that forms a chemical element every solid , liquid , gas and plasma is composed of a neutral or ionized atom . Atom are extremely small , typically around 100 picometers across .